Detecting mixing barriers in Twin-Screw extruder elements via Lagrangian Coherent Structures
Chemical Engineering Science(2022)
Abstract
•A fully Lagrangian workflow to obtain Lagrangian Coherent Structures was implemented.•Transport barriers revealed the mixing mechanisms of twin-screw extruder elements.•Mixing barriers were determined and compared for various realistic screw geometries.•Tracer experiments show the link between of fluid element deformation and mixing barriers.
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Key words
Twin-screw extruder element,TSE,Smoothed particle hydrodynamics,SPH,Lagrangian Coherent Structures,LCS,Laminar mixing
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